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Message-ID: <20230520045623.GB18246@pengutronix.de> Date: Sat, 20 May 2023 06:56:23 +0200 From: Oleksij Rempel <o.rempel@...gutronix.de> To: Vladimir Oltean <olteanv@...il.com> Cc: "David S. Miller" <davem@...emloft.net>, Andrew Lunn <andrew@...n.ch>, Eric Dumazet <edumazet@...gle.com>, Florian Fainelli <f.fainelli@...il.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Woojung Huh <woojung.huh@...rochip.com>, Arun Ramadoss <arun.ramadoss@...rochip.com>, "Russell King (Oracle)" <linux@...linux.org.uk>, Simon Horman <simon.horman@...igine.com>, kernel@...gutronix.de, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, UNGLinuxDriver@...rochip.com Subject: Re: [PATCH net-next v4 1/2] net: dsa: microchip: ksz8: Make flow control, speed, and duplex on CPU port configurable On Sat, May 20, 2023 at 02:28:02AM +0300, Vladimir Oltean wrote: > > + /* This hardware only supports SPEED_10 and SPEED_100. For SPEED_10 > > + * we need to set the SW_10_MBIT bit. Otherwise, we can leave it 0. > > + */ > > + if (speed == SPEED_10) > > + ctrl |= SW_10_MBIT; > > + > > + ksz_rmw8(dev, REG_SW_CTRL_4, SW_HALF_DUPLEX | SW_FLOW_CTRL | > > + SW_10_MBIT, ctrl); > > REG_SW_CTRL_4 ... S_REPLACE_VID_CTRL ... dev->info->regs[P_XMII_CTRL_1] ... > at some point we will need one more consolidation effort here, since we > have at least 3 ways of reaching the same register. Agree, the register access is a bit messy now. Your idea about the regfield API sounds good. We should try it. Should i convert this patch to use dev->info->regs? > > .mirror_del = ksz8_port_mirror_del, > > .get_caps = ksz8_get_caps, > > + .phylink_mac_link_up = ksz8_phylink_mac_link_up, > > Another future consolidation to consider: since all ksz_dev_ops now > provide .phylink_mac_link_up(), the "if" condition here is no longer > necessary: > > static void ksz_phylink_mac_link_up(struct dsa_switch *ds, int port, > unsigned int mode, > phy_interface_t interface, > struct phy_device *phydev, int speed, > int duplex, bool tx_pause, bool rx_pause) > { > struct ksz_device *dev = ds->priv; > > if (dev->dev_ops->phylink_mac_link_up) > dev->dev_ops->phylink_mac_link_up(dev, port, mode, interface, > phydev, speed, duplex, > tx_pause, rx_pause); > } > > which reminds me of the fact that I also had a patch to remove > dev->dev_ops->phylink_mac_config(): > https://patchwork.kernel.org/project/netdevbpf/patch/20230316161250.3286055-5-vladimir.oltean@nxp.com/ > > I give up with that patch set now, since there's zero reviewer interest. > If you want and you think it's useful, you might want to adapt it for > KSZ8873. Sounds good. I'll take it in to my mainlining queue for KSZ8873. > > .config_cpu_port = ksz8_config_cpu_port, > > .enable_stp_addr = ksz8_enable_stp_addr, > > .reset = ksz8_reset_switch, > > -- > > 2.39.2 > > > > Reviewed-by: Vladimir Oltean <olteanv@...il.com> > Regards, Oleksij -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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